Dual wheel mounting



DUAL WHEEL MOUNTING Filed July 27, 1950 Fig. 1

Buel H. C

IN VEN TORS arm ATTORNEY Patented Apr. 28, 1953 I stain. Canada Our invention relates to adual wheel mount ing; 1 2., g, ,7 1 V 1 Aprimaryobject -of the invention is to'p'ro Vida a dual-wheel assembly which is less expensiveto build, andeasier to assemble, disassemble and inspect than other conventional dual wheel assemblies. l I

A further objectof the invention is to providea dual; wheel mounting which is extremely strong and durable, and constructed so that the discv wheels cannot freeze or bind upon the hub or wheel studs. l

A further object is to assembly for heavy trucks, bussesand the like,

tain the assembly tight during use-.

A still further object of the invention outer side of the wheel, without the necessity b'f-wor l r'ingffrom the inner or brake drumside. 1, Other objects; and advantages of the invena tion will be apparent during the course of the following description:

The instantapplication; S. 176,, 178 shows subject matterin common with our co-pending application V for"- Dual ,Wheel Mounting, S N;

6 fi Q]Ai F- 9 D n al s tmatter which-is specifically different, and since the instant application s; 176,178 filed July 27, 1950;p'rior to thejfiling date of August 15, 1950, of application 179,624, the c1aim whlcli is generic-to the constructions shownin -the two applications isfpl-acedin the earlier filed a'pp1ica-,v

tion 176,178. A 1 l In the accompanying drawingsQforming a part are employed to designate like parts throughout same,-- Figure 1 provide a dual wheel;-

is to provide a dual wheel assembly which may be. mounted, dismounted and inspected; from the is a radial cross-section through a" dual wheel mounting embodying our invention; x

r l tww l0 includesan annular radial spoke flange or "so, of..-this application, and in which like" nurneriallsr plate I I, integral therewith, and having inner and outer flati faces I-or ends l0 and .I If. 'lhe spoke flange H is provided near and inwardly of its periphery with a plurality of circumferentially equidistantly spaced axi'al cylindrical: openings I2, arranged radially outwardly of the body portion of the hub, as shown. 1, Thenumerals l3 and I4 designate inner and outer disc wheels comprising annular flat inner disc portions l3 and M, which extend radially, and outer generally radialdiverging portions 1'5, upon the circumferences; of which-are mounted rims l6, rigidlysec'ured thereto by any conventional means,=- such asby welding. The rims-l6 are of conventional construction, and adaptedto carry pneumatic'tires- 11-, asshown "in Figure 2. The flat disc portions-l3 and ll havelarge central axial openings I8 which registerpand permitthedisc wheels to pass overtheouter end Of-thehub l0. Thedisc portions -l3'-and H are further provided radially outwardly of the openings l8 with inner and outer conical openings-|9 and-20." The inner and-outer conical openings; IS and 2B"; are arranged in circumfe'rentially equidistantly spaced groups which are adapted toregister with each other and :with the group of openings l2 in the hub flange H; The inner conical qpenings lll taper axially outwardly; andthe outerconicalopenings 20 taper axially inwardly. =The openings -19 armer:- tend-entirely through the respective discs I3 and Mj-l The innerand'buter conical it openings: 19 and 20 preferably havethesame degree ofztaper; an d also preferablyyhave equal diameters, so that the smallends of the conical openings, at the meeting faces of thediscs l3'and i4 register. We prefer that the conical openings l9 and 20 have included angles of approximately 60 degrees, but we do not wish to restrict the invention to any particular degree of taper, and the degreeofltaperof the conical openings may be Figure 2 is awiragmentary sideelevation of the wheel mounting drawn on a reduced scale and, t t Figure 3 is one wheel attaching stud andassociated elements;

detail section through In, the drawings, where for the-purpose of ilnot shown, in. aconVntional manner The hub varied? It is "also preferred that the diameters of the conical openings 19 and 20 at their opposecl smallends be substantially equal to the diameters of the openings l2.

'Axial bolts or studs 2| are provided, and these bolts have enlarged conical lugs or shoulders 22, integral therewith, and arranged near the longitudinal centers of the studs. The lugs 22 taper axially outwardly, and-have the same'degree of taper as the openings IS in which they'engagel The inner ends of the conical lugs 22 engage the outer face H, and inner screw-threaded exten sions-2-3 of the studs 2| extend through the'op'enings i2, and through registering openings 24 in the outer flat radial web or disc 25 of a wheel brake drum 26. The radial web 26 engages the inner face of the spoke flange I I, and is provided with a central axial opening 21, receiving the inner end of the hub iii. The stud extensions 23 project axially inwardly of the web 25 and are provided at their inner ends with nuts 28 which aretighteried againsti the inner face of the brake drum web 25, for drawing the conical extending axially of the hub, bolts extending through the openings in the flange and web and lugs 22 tightly against the spoke flange ll.

As shown clearly in Figure 3, the inner or larger flat ends of the conical lugs 22 extend-axially,

inwardly beyond the inner face of the disc l3",

and the outer or smaller ends of thelugs 22 te'r- -"JlS' minate axially inwardly of the meetingfaces-of the discs l3 and W. Withthisarrangement;

the inner disc is maintained spaced nausea v7 wardly slightly from the outer face l-"i '.-----'I his prevents any possible freezing or binding between the inner disc wheel :53 and-the spolce jflange ii. Outer screw-threaded extensions -29? of the studs -2;;l' extend through: the conical openings; 2-0 and axially: outwardly of the web -l4,' for the; recepvt-ion 'cf Wedge nuts having inner conically tapered portions or ends ;3 engaging axially within the conical openings 2B. The inner ends of the nuts 3?! term nate axially outwardly of-the meeting faces of the discs l3 and I4, so that the inner ends-of the nuts 30 are spaced from the outer opposed ends of the lugs 22, Figure 3, even when the wedge nuts 3 3 are tightened to :the fullest possible extent. When the wedge nuts 3-3 are drawn up tightly, the flat discs 13 and :M are drawn into tight contact, and are in engagement. throughout their entire-areas. Since the discs are flat, and since there is always space .between the opposed ends of thelugs 22 and nuts :33, there isno-liability of the disc wheels i3 and ML freezing or binding togetheiyin; assembly. There is likewise no liabilityof either of -the disc'wheels binding or freezing upon the attach- .il'lg studs 21. When the wedge nuts 30 are tightened, they wedge tightly into the conical open ings 23 and cause the lugs 22 to likewise wedge tightlyinto'the openings l9,1so that there isino liability of the dual wheel assembly loosenin during use.-

With our-arrangement described above, and .wlith the studs Z -i first applied to the spokeflange Illfor securin the brake drum 26in place, the disc wheels is and i t maybe applied and removed Efrem-the outer side of the wheeL-itv being unnecessary to work from the-inner side of the brake drum Since the openings I 9 and .20 taper. in opposite directions, when the wedge nutsllil have been removed, both disc wheels are removable from the outer side of the wheel.-- Also, the dualwheel assembly may be readily inspected and tightened from the outer side of the wheel. .fllher entire load oithe vehicle is transmitted 'thro'ughnthe hub ill to the studs 2i,and-the brake. drum '26 is thus required to carry no part efgtheload. The conical openings 19 and 20 afford maximum bearing areas to absorb the load transmitted through the studs -2-l to the wheel discs l3 and i i. The entire constructionis extremely sturdy and durable, and all parts are easy to machine, so that the wheel assembly is reladeparting from the spirit of our. invention or the scope of the subjoined claims.

Having thus described our invention, we claim:

1. A dual wheel assembly comprising a hubhaving a spoke flange provided with a radially flat outer face and having circumferentially spaced cylindrical openings extending axially of the flange, a wheel brake drum having a web "arranged upon the inner sneer the flange and provided with circumferentially spaeedbpenings -corresponding in number to the openings for "securing the web to theflange, said bolts extendoutwardl-y beyond the flange, inner and outer -disc wh'eels to be secured to the hub and including parallel radial disc portions having main openings for receiving a portion'of the hub and llarger 'than such hub portion so that the disc portions are free from thermal contact with the hub a the m in penine za he-disc pcrtionszhaving their adjacent faces contacting, the disc portion of the inner wheel-having,circumierentially spaced openings extending through the opposite faces of such disc portion and tapered outwardly throughout their entire lengths, and the disc portion of the outer wheel having circumferentially spaced openings extending'through-l the opposite faces of such disc portion and tapered inwardly throughout their entire lengths-the tapered openings extending axially of the hub and being in alignment with each other and the openings in the flange and corresponding innumber to the flange openings and receiving the bolts which extend outwardly beyond the flange, an annular adapter mounted upon each bolt, and formed in tegral-therewith, and taperedoutwardly throughout its entire length to fit within each tapered opening of the disc portionofthe inner wheel and serving to-rigidly mount such disc portion upon the bolt and having a length to engage the major portion-of the wall ofthe tapered opening of the inner-disc portion and toextend for a subvstantial distance beyond the inner face of such disc portion and having a radially flat end face to contact with the-outer flat face or the flange when the adapter is seated and thereby retain the disc portion of the inner wheelspaced from andtout-of thermal contact with such flange, and a nut carried by the outer end of each-bolt and provided withan integral ladapter tapered inwardly throughout ite entire jlength; to-flt within each taperedlopeningoit cheese portion of. the outer "Wheel, the nut and ilast-named adapter serving to rigidly mount the disc portion of the outer wheel upon the bolt, said last-named adapter having a. length to engage with the major portion-of the-wall ,ofthe tapered opening of the outer disc portion, the adapters mounted upon each bolt having;their-innerendsspaCed;

A duahwheel assembly comprising a hub .ha-ving ,a spo'ke-flange provided-with a radially flat outer face and having circumferentially spaced-openings extending axially of the flange, a wheel brake drum" having a web arranged upon the inner side-of the flange and provided with circumferentiallyspaced openings extending axially of the hub, bolts extending through the openings in the flange and web and corresponding in number totheopen'ings for securing the web to-the flange, said bolts extending outwardly beyond "the flange, inner and outer disc wheels to be secured to the hub and including disc portions having main openings for receiving a portion of the hub :and larger than such hub portion 5 so that the disc portions are tree from thermal contact with the hub at the main openings, the inner wheel disc portion having circumferentially spaced openings tapered outwardly throughout their entire lengths and the outer wheel disc portion having circumferentially spaced openings tapered inwardly throughout their entire lengths, the tapered openings formed in each disc portion extending through the oppositefaces of such disc portion, the tapered openings extending axially of the hub and being in axial alignment with each other and the openings in the flange and corresponding number to the flange openings and receiving the bolts which extend outwardly beyond the outer wheel disc portion, an annular adapter 'mounted upon each bolt, said adapter being tapered outwardly throughout its entire length to fit within each tapered opening of the inner wheel; disc portion and rigidly mounting the inner wheel disc portion upon the bolt .and being of a length to contact with the major portion of the wall'io fgsuch tapered opening and to extend inwardly beyond the inner wheel disc portion for a substantial distance and having a radially portion spaced from and out of thermal contact end of each bolt and provided with an adapter flat inner end face to contact with the outer flat 25 face of the 'flange and retain the inner wheel disc Ftapered inwardly throughout its entire length to t-" t within each tapered opening of; the outer {wheel disc portion, said last named adapter having a length to contact with the rnjaj or portion of the wall of such tapered opening, the lastnamed nut serving to rigidly mount the outer wheel disc portion upon the bolt, said adapters having their inner ends spaced.

BUEL H. CANADY. CLIFFORD WILEY.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 1,635,894 Michelin July 12, 1927 1,635,895 Michelin July 12, 1927 1,666,703 Hunt Apr. 1'7, 1928 2,336,767 Ash Dec. 14, 1943 FOREIGN PATENTS Number Country Date 215,582 Great Britain May 15, 1924 

